package se_test;

import java.util.Scanner;

class Data{
    private int x;
    private int y;

    public Data(int x, int y){
        this.x = x;
        this.y = y;
    }

    public int getX() {
        return x;
    }

    public void setX(int x) {
        this.x = x;
    }

    public int getY() {
        return y;
    }

    public void setY(int y) {
        this.y = y;
    }
}
public class Test4{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while(scanner.hasNextInt()){
            int x = scanner.nextInt();
            int y = scanner.nextInt();
            Data data = new Data(x,y);
            System.out.println(data.getX() + data.getY());
        }
    }
}
